LanguagesKotlin

kotlinperf rule ids (slugs)

Canonical ids are slugs only. Numerics from the old map are historical and not accepted.

Slug
`kt-list-add-hot`
`kt-string-plus-hot`
`kt-println-hot`

Renamed 2026-10-27 (tombstone old; never reuse)

Default --scope all (or kit-equivalent). Old *-in-loop ids misled tools/models; they are tombstoned under evidence/_removed/.

Old slug	New slug
`kt-list-add-in-loop`	`kt-list-add-hot`
`kt-println-in-loop`	`kt-println-hot`
`kt-string-plus-in-loop`	`kt-string-plus-hot`

Removed (tombstone; never reuse)

KT004 — see evidence/_removed/

See also root rule-id-map.

Kotlin performance guide (v0)

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Renamed 2026-10-27 (tombstone old; never reuse)Removed (tombstone; never reuse)